1) On a BA²=AC²+BC²=9+25=34 cm
Donc BA= [tex]\sqrt{34}[/tex] cm =5.83 cm
2) On a FE² = DF²+DE²
Alors DF²=FE²-DE²=49-30.25=18.75 cm
Donc DF= [tex]\sqrt{18.75}[/tex] cm= 4.33 cm
3) GH²=IH²+GI²
Alors GI²=GH²-IH² = 20.25-7.84 = 12.41 cm
Donc GI= [tex]\sqrt{12.41}[/tex] cm = 3.52 cm
4) On a JL²=LK²+JK² = 17.64+36.96 = 57.33 cm
Donc JL = [tex]\sqrt{57.33}[/tex] cm = 7.57 cm
